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// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
// 
//   http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
// 
//   http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
import WeakMap from 'zrender/lib/core/WeakMap.js';
import LRU from 'zrender/lib/core/LRU.js';
import { defaults, map, isArray, isString, isNumber } from 'zrender/lib/core/util.js';
import { getLeastCommonMultiple } from './number.js';
import { createSymbol } from './symbol.js';
import { brushSingle } from 'zrender/lib/canvas/graphic.js';
import { platformApi } from 'zrender/lib/core/platform.js';
var decalMap = new WeakMap();
var decalCache = new LRU(100);
var decalKeys = ['symbol', 'symbolSize', 'symbolKeepAspect', 'color', 'backgroundColor', 'dashArrayX', 'dashArrayY', 'maxTileWidth', 'maxTileHeight'];
/**
 * Create or update pattern image from decal options
 *
 * @param {InnerDecalObject | 'none'} decalObject decal options, 'none' if no decal
 * @return {Pattern} pattern with generated image, null if no decal
 */

export function createOrUpdatePatternFromDecal(decalObject, api) {
	if (decalObject === 'none') {
		return null;
	}

	var dpr = api.getDevicePixelRatio();
	var zr = api.getZr();
	var isSVG = zr.painter.type === 'svg';

	if (decalObject.dirty) {
		decalMap['delete'](decalObject);
	}

	var oldPattern = decalMap.get(decalObject);

	if (oldPattern) {
		return oldPattern;
	}

	var decalOpt = defaults(decalObject, {
		symbol: 'rect',
		symbolSize: 1,
		symbolKeepAspect: true,
		color: 'rgba(0, 0, 0, 0.2)',
		backgroundColor: null,
		dashArrayX: 5,
		dashArrayY: 5,
		rotation: 0,
		maxTileWidth: 512,
		maxTileHeight: 512
	});

	if (decalOpt.backgroundColor === 'none') {
		decalOpt.backgroundColor = null;
	}

	var pattern = {
		repeat: 'repeat'
	};
	setPatternnSource(pattern);
	pattern.rotation = decalOpt.rotation;
	pattern.scaleX = pattern.scaleY = isSVG ? 1 : 1 / dpr;
	decalMap.set(decalObject, pattern);
	decalObject.dirty = false;
	return pattern;

	function setPatternnSource(pattern) {
		var keys = [dpr];
		var isValidKey = true;

		for (var i = 0; i < decalKeys.length; ++i) {
			var value = decalOpt[decalKeys[i]];

			if (value != null && !isArray(value) && !isString(value) && !isNumber(value) && typeof value !== 'boolean') {
				isValidKey = false;
				break;
			}

			keys.push(value);
		}

		var cacheKey;

		if (isValidKey) {
			cacheKey = keys.join(',') + (isSVG ? '-svg' : '');
			var cache = decalCache.get(cacheKey);

			if (cache) {
				isSVG ? pattern.svgElement = cache : pattern.image = cache;
			}
		}

		var dashArrayX = normalizeDashArrayX(decalOpt.dashArrayX);
		var dashArrayY = normalizeDashArrayY(decalOpt.dashArrayY);
		var symbolArray = normalizeSymbolArray(decalOpt.symbol);
		var lineBlockLengthsX = getLineBlockLengthX(dashArrayX);
		var lineBlockLengthY = getLineBlockLengthY(dashArrayY);
		var canvas = !isSVG && platformApi.createCanvas();
		var svgRoot = isSVG && {
			tag: 'g',
			attrs: {},
			key: 'dcl',
			children: []
		};
		var pSize = getPatternSize();
		var ctx;

		if (canvas) {
			canvas.width = pSize.width * dpr;
			canvas.height = pSize.height * dpr;
			ctx = canvas.getContext('2d');
		}

		brushDecal();

		if (isValidKey) {
			decalCache.put(cacheKey, canvas || svgRoot);
		}

		pattern.image = canvas;
		pattern.svgElement = svgRoot;
		pattern.svgWidth = pSize.width;
		pattern.svgHeight = pSize.height;
		/**
     * Get minimum length that can make a repeatable pattern.
     *
     * @return {Object} pattern width and height
     */

		function getPatternSize() {
			/**
       * For example, if dash is [[3, 2], [2, 1]] for X, it looks like
       * |---  ---  ---  ---  --- ...
       * |-- -- -- -- -- -- -- -- ...
       * |---  ---  ---  ---  --- ...
       * |-- -- -- -- -- -- -- -- ...
       * So the minimum length of X is 15,
       * which is the least common multiple of `3 + 2` and `2 + 1`
       * |---  ---  ---  |---  --- ...
       * |-- -- -- -- -- |-- -- -- ...
       */
			var width = 1;

			for (var i = 0, xlen = lineBlockLengthsX.length; i < xlen; ++i) {
				width = getLeastCommonMultiple(width, lineBlockLengthsX[i]);
			}

			var symbolRepeats = 1;

			for (var i = 0, xlen = symbolArray.length; i < xlen; ++i) {
				symbolRepeats = getLeastCommonMultiple(symbolRepeats, symbolArray[i].length);
			}

			width *= symbolRepeats;
			var height = lineBlockLengthY * lineBlockLengthsX.length * symbolArray.length;

			if (process.env.NODE_ENV !== 'production') {
				var warn = function (attrName) {
					/* eslint-disable-next-line */
          console.warn("Calculated decal size is greater than " + attrName + " due to decal option settings so " + attrName + " is used for the decal size. Please consider changing the decal option to make a smaller decal or set " + attrName + " to be larger to avoid incontinuity.");
				};

				if (width > decalOpt.maxTileWidth) {
					warn('maxTileWidth');
				}

				if (height > decalOpt.maxTileHeight) {
					warn('maxTileHeight');
				}
			}

			return {
				width: Math.max(1, Math.min(width, decalOpt.maxTileWidth)),
				height: Math.max(1, Math.min(height, decalOpt.maxTileHeight))
			};
		}

		function brushDecal() {
			if (ctx) {
				ctx.clearRect(0, 0, canvas.width, canvas.height);

				if (decalOpt.backgroundColor) {
					ctx.fillStyle = decalOpt.backgroundColor;
					ctx.fillRect(0, 0, canvas.width, canvas.height);
				}
			}

			var ySum = 0;

			for (var i = 0; i < dashArrayY.length; ++i) {
				ySum += dashArrayY[i];
			}

			if (ySum <= 0) {
				// dashArrayY is 0, draw nothing
				return;
			}

			var y = -lineBlockLengthY;
			var yId = 0;
			var yIdTotal = 0;
			var xId0 = 0;

			while (y < pSize.height) {
				if (yId % 2 === 0) {
					var symbolYId = yIdTotal / 2 % symbolArray.length;
					var x = 0;
					var xId1 = 0;
					var xId1Total = 0;

					while (x < pSize.width * 2) {
						var xSum = 0;

						for (var i = 0; i < dashArrayX[xId0].length; ++i) {
							xSum += dashArrayX[xId0][i];
						}

						if (xSum <= 0) {
							// Skip empty line
							break;
						} // E.g., [15, 5, 20, 5] draws only for 15 and 20

						if (xId1 % 2 === 0) {
							var size = (1 - decalOpt.symbolSize) * 0.5;
							var left = x + dashArrayX[xId0][xId1] * size;
							var top_1 = y + dashArrayY[yId] * size;
							var width = dashArrayX[xId0][xId1] * decalOpt.symbolSize;
							var height = dashArrayY[yId] * decalOpt.symbolSize;
							var symbolXId = xId1Total / 2 % symbolArray[symbolYId].length;
							brushSymbol(left, top_1, width, height, symbolArray[symbolYId][symbolXId]);
						}

						x += dashArrayX[xId0][xId1];
						++xId1Total;
						++xId1;

						if (xId1 === dashArrayX[xId0].length) {
							xId1 = 0;
						}
					}

					++xId0;

					if (xId0 === dashArrayX.length) {
						xId0 = 0;
					}
				}

				y += dashArrayY[yId];
				++yIdTotal;
				++yId;

				if (yId === dashArrayY.length) {
					yId = 0;
				}
			}

			function brushSymbol(x, y, width, height, symbolType) {
				var scale = isSVG ? 1 : dpr;
				var symbol = createSymbol(symbolType, x * scale, y * scale, width * scale, height * scale, decalOpt.color, decalOpt.symbolKeepAspect);

				if (isSVG) {
					var symbolVNode = zr.painter.renderOneToVNode(symbol);

					if (symbolVNode) {
						svgRoot.children.push(symbolVNode);
					}
				} else {
					// Paint to canvas for all other renderers.
					brushSingle(ctx, symbol);
				}
			}
		}
	}
}
/**
 * Convert symbol array into normalized array
 *
 * @param {string | (string | string[])[]} symbol symbol input
 * @return {string[][]} normolized symbol array
 */

function normalizeSymbolArray(symbol) {
	if (!symbol || symbol.length === 0) {
		return [['rect']];
	}

	if (isString(symbol)) {
		return [[symbol]];
	}

	var isAllString = true;

	for (var i = 0; i < symbol.length; ++i) {
		if (!isString(symbol[i])) {
			isAllString = false;
			break;
		}
	}

	if (isAllString) {
		return normalizeSymbolArray([symbol]);
	}

	var result = [];

	for (var i = 0; i < symbol.length; ++i) {
		if (isString(symbol[i])) {
			result.push([symbol[i]]);
		} else {
			result.push(symbol[i]);
		}
	}

	return result;
}
/**
 * Convert dash input into dashArray
 *
 * @param {DecalDashArrayX} dash dash input
 * @return {number[][]} normolized dash array
 */

function normalizeDashArrayX(dash) {
	if (!dash || dash.length === 0) {
		return [[0, 0]];
	}

	if (isNumber(dash)) {
		var dashValue = Math.ceil(dash);
		return [[dashValue, dashValue]];
	}
	/**
   * [20, 5] should be normalized into [[20, 5]],
   * while [20, [5, 10]] should be normalized into [[20, 20], [5, 10]]
   */

	var isAllNumber = true;

	for (var i = 0; i < dash.length; ++i) {
		if (!isNumber(dash[i])) {
			isAllNumber = false;
			break;
		}
	}

	if (isAllNumber) {
		return normalizeDashArrayX([dash]);
	}

	var result = [];

	for (var i = 0; i < dash.length; ++i) {
		if (isNumber(dash[i])) {
			var dashValue = Math.ceil(dash[i]);
			result.push([dashValue, dashValue]);
		} else {
			var dashValue = map(dash[i], function (n) {
				return Math.ceil(n);
			});

			if (dashValue.length % 2 === 1) {
				// [4, 2, 1] means |----  -    -- |----  -    -- |
				// so normalize it to be [4, 2, 1, 4, 2, 1]
				result.push(dashValue.concat(dashValue));
			} else {
				result.push(dashValue);
			}
		}
	}

	return result;
}
/**
 * Convert dash input into dashArray
 *
 * @param {DecalDashArrayY} dash dash input
 * @return {number[]} normolized dash array
 */

function normalizeDashArrayY(dash) {
	if (!dash || typeof dash === 'object' && dash.length === 0) {
		return [0, 0];
	}

	if (isNumber(dash)) {
		var dashValue_1 = Math.ceil(dash);
		return [dashValue_1, dashValue_1];
	}

	var dashValue = map(dash, function (n) {
		return Math.ceil(n);
	});
	return dash.length % 2 ? dashValue.concat(dashValue) : dashValue;
}
/**
 * Get block length of each line. A block is the length of dash line and space.
 * For example, a line with [4, 1] has a dash line of 4 and a space of 1 after
 * that, so the block length of this line is 5.
 *
 * @param {number[][]} dash dash array of X or Y
 * @return {number[]} block length of each line
 */

function getLineBlockLengthX(dash) {
	return map(dash, function (line) {
		return getLineBlockLengthY(line);
	});
}

function getLineBlockLengthY(dash) {
	var blockLength = 0;

	for (var i = 0; i < dash.length; ++i) {
		blockLength += dash[i];
	}

	if (dash.length % 2 === 1) {
		// [4, 2, 1] means |----  -    -- |----  -    -- |
		// So total length is (4 + 2 + 1) * 2
		return blockLength * 2;
	}

	return blockLength;
}